Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hanoi to Tempe as you normally would.
Related info for your journey
Useful info, stats and facts about Hanoi to Tempe flights.
Located just 22.8 km from the city center, Hanoi Noibai is the airport most travelers will use when flying to Tempe from Hanoi. Booking flights from Noibai (HAN) to Tempe should be relatively easy as there are 0 daily outbound flights to Tempe from 0 different airlines.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Hanoi Noibai Airport to Phoenix Sky Harbor Intl Airport flight would often be abbreviated as a HAN to PHX flight. Ready for more IATA code knowledge? These are related airports for your current travel destination: Phoenix-Mesa Gateway Airport (AZA), Prescott Airport (PRC).